Hose-coupling.



1. H. STEPHENS.

HOSE COUPLING.

APPLICATION FILED JULY 8, 1913.

1,171,551. Patented Feb.15,1916.

v UNITED STATES PATENT OFFICE.

JOHN H. STEPHENS, OF ERNON, TEXAS.

HOSE-COUPLING.

To all whom it may concern: 1

v Be it known that I, JOHN H. STEPHENS, a citizen of the United States,residing at Vernon, in the county of Wilbarger and State of Texas, haveinvented certain new and useful Improvements in Hose-Couplings, of whichthe following is a specification.

This invention relates to hose couplings.

One object is to provide a hose coupling composed of coupling memberseach having hose engaging lugs into engagement with which the hosesections are adapted to be expanded by thimbles driven into the couplingmembers. A

Another object resides in the provision of a hose coupling composed ofcoupling members provided with internal short spaced hose engaging lugsinto locking engagement with which the hose sections arey adapted to beexpanded by tapering thimbles preferably driven into the hose sectlonsand which thimbles are preferably provided with spaced extenior lugsadapted to bite into the hose sections from the inner side thereof toreinforce the aforesaid lugs 1n securing the hose sections in thecouplmg members and to prevent accidental withdrawal of the thimblesfrom the hose sections.

A still further object, resides in the provision of a coupling 'memberfor hose couplings embodying a sleeve provided with internal lugs intolocking engagement with which and against the inner surface of thesleeve a hose section is adapted to be explained through theinstrumentality of a tapering thimble which is adapted to be driven intothe bore of the hose section.

With the above and other objects in view the present invention consistsin the combination and arrangement of parts hereinafter more fullydescribed, illustrated in the accompanying drawings pointed out in theappended claims, it being understood that changes may be made in theform, proportion, size and minor details without departing from thespirit or sacrificing any of the advantages of the invention.

In the drawings z-Figure 1 is a longitudinal section view of one form ofthe in-` vention. Fig. 2 is a transverse sectional view on the line -wof Fig. 1. Fig. 3 is Specification of Letters Patent.

and particularly,

Patented Feb. 15, 1916.

Application led July 8, 1913. Serial No. 777,939.

a longitudinal sectional yview of a modified form of the invention.

Referring now to the accompanying draw ings and more particularly toFigs. 1 and 2, one form of my improved coupling comprlses couplingmembers l() and 11 with each of which members cooperates thimbles l'ably tapered and are driven into the hose sections 1 6 and 17 from theinner vends of the coupllng members.v The 'outer end' of each thimbleterminates' in substantially a sharp edge so that when Athe hosesections 16 and 17 are clamped between the respective thimbles l2 and 13and sections 10 and l1l the interior of the hose may be substantiallysmooth.

In assembling the parts the hose sections 16 and 17 are fitted in thecoupling members 10 and 11 with the inner ends of the hose sectionsfitted preferably against the annular` internal shoulders 18 and 19 ofthe coupling member. Prior to connecting the couphng member 11operatively with the coup ling member 10 by the nut 14, the respectivewedge thimbles 12 and 13 are inserted into the respective couplingmembers 10 and 11 from the inner ends of the latter.` These thimblesbeing wedge shaped 'or tapered as shown, a driving of the thimbles in ansuitable manner into the bore of the hose sections 16 and 17 causes thehose sections to expand tightly against the coupling members and beclamped tightly between them and the thimbles.

To insure a firm grip of the coupling members 10 and 11 on the' outersurface of the hose sections 16 and 17 the coupling membersarepreferably provided with mternal knife edge lugs 20 which are adaptedto bite into the rubber hose or other pipe sections 16 and v17 when thelatter are expanded by the thimbles as the thimbles are driven y Toinsure against accidental withdrawal of the thimbles 12 and 13 fromclamping en-v gagement with the inner surface of the hose sections 16and. 17, I preferably provide the thimbles 12 and 13 on their exteriorwith a plurality of slightly raised inclinedy lugs 22, which, owing totheir inclined faces 22, permit of the thimbles being driven through thecoupling/sections and into the hose and yet, by virtue of the shoulders23 at the rear of the lugs 22, there is little or no danger ofaccidental withdrawal of the thimbles 12 and 13 from the coupling memrbers or out of securing connection4 with the hose sections 16 and 17.

From the foregoing it will be seen that I provide a comparativelysimple' and inexpensive hose coupling and one wherein by virtue of thewedging action of the thimbles 12 and 13 the hose is clamped between thethimbles and the coupling members with the lugson the inner side of thecoupling sections biting into the hose sections. It will also beapparent that these lugs 20 are reinforced by the lugs 22, which do nothinder insertion of the thimbles in the hose sections and yet preventaccidental withdrawal of the thimbles from cooperative bindingengagement with the hose sections.

In Fig. 3 there is shown a modified form of the invention. In thisinstance the hose 23 may be connected up with a hydrant, bib cock,nozzle, nipple or the like 24; by virtue of the hose coupling member 25having swiveled engagement with a nut 26 which is' adapted to screw ontothe outlet nipple or thelike 21 of the supply. This nipple 21 ispreferably provided with an annular seat 27 having an inclined face 28adapted to be engaged by the inclined seat face 29 on the thimble 30which latter co operates with the coupling member 25 to clamp the hosethereon in the same manner that the thimbles 12 and 13 coperate with thecoupling members 10 and 11. The essential characteristics of thismodified form. of invention reside in the manner of clamp- .ing theinner end of the hose in the coupling member and in the forming of atight ground joint by the inclinedvsurfaces 28 and 29 of the nipple 24and thimble 30 so as to obviate the necessityf'of using a gasket socommonly employed and frequentl lost in connection with hoseinowuniversa y used.

I therefore provide an efficient ground joint connection whichfbviatesentirely the use of a gasket and I also provide a new and novel meansfor clamping the ho-se section;

in the coupling member as has been eX- plained.

What is claimed is 1. A hose coupling comprising coupling members, aclamping thimble in each of said coupling members, each coupling memberhaving spaced internal hose engaging lugs, each thimble having spacedexternal hose engaging lugs formed with beveled outer ends to facilitateinsertion of the thimbles into the hose sections and havingperpendicular shoulders at their inner endsto prevent accidentalymovement outward of the and having spaced external hose engaging lugsformed with beveled outer ends to facilitate insertion of the-thimbleinto the hose section and perpendicular shoulders at their inner ends toprevent accidental movement of the thimble outwardly of the hosesection.

In testimony whereof I aiix my signature in presence of two witnesses.

, JOHN H. STEPHENS.` Witnesses:

o JOHN H. SIGGERS,

GEO. C. SHOEMAKER.-

